<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Getting the scale and labels right</title><link rel="stylesheet" type="text/css" href="manual.css"><meta name="generator" content="DocBook XSL Stylesheets V1.76.0"><link rel="home" href="index.html" title="JpGraph Manual"><link rel="up" href="ch35s03.html" title="The Init() method"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Getting the scale and labels right</th></tr><tr><td width="20%" align="left"> </td><th width="60%" align="center">The Init() method</th><td width="20%" align="right"> </td></tr></table><hr></div><div class="section" title="Getting the scale and labels right"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2622163"></a>Getting the scale and labels right</h2></div></div></div>
                
                <p>For this type of graph we have manually set the distance between each tick
                    label to 25 units. This would put labels as 0,25,50, and so on. The maximum
                    value (the user specifies) will be adjusted so that it is always an even
                    multiple of 25 to allow the last tick mark to be at the end of the axis.</p>
                <p>As can be seen from the previous images we are using one feature that hasn't
                    been previously exemplified and that is the possibility to have unique colors on
                    each label on the scale. We use this for the x-scale by having the negative
                    labels in black and the positive labels in white. The reason is purely
                    functional to allow the scale labels to be more easy to read against the colored
                    background.</p>
                <p>The color of the labels are specified as the second argument to </p>
                <p>
                    </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem">
                            <p><code class="code">Axis::SetColor($aAxisColor,$aLabelColor)</code></p>
                        </li></ul></div><p>
                </p>
                <p>In addition we have also hidden the zero labels since they would just be
                    disturbing in the middle and doesn't really add any information we don't already
                    have.</p>
                <p>Finally the labels are formatted to show a percentage sign after each label.
                    This is done by a format string</p>
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